Day 3: Mollusks, Echinoderms and Vertebrates

Mollusks have

• bilateral symmetry

• radial symmetry

• no symmetry

What phylum do sea stars, sea urchins, sand dollars, brittle stars, and sea cucumber belong to?

• Animalia

• Annelida

• Echinodermata

• Mollusca

What does the term echinoderm mean?

• tube feet
• star shaped
• spiny skin
• stomach foot

The following statements about Mollusks are true EXCEPT for ONE:

• They have an open circulatory system.

• Example of phylum Mollusca includes- Snails and Beetles.

• Their limbs are present.

• They are triploblastic.

What are vertebrates?

• Animals with a backbone

• Animals without a backbone

There are five categories of vertebrates. Which one is not a vertebrate?

• Mammals

• Birds

• Insects

• Reptiles

My body is warm and covered in feathers. I lay eggs which hatch into chickens. What am I?

• Reptile

• Amphibian

• Mammal

• Bird

I have fur and I can fly. I feed my young on milk, and have live births. What am I?

• Reptile

• Bird

• Mammal

• Fish

I am covered in dry scales and I lay eggs. What am I?

• Mammal

• Fish

• Amphibian

• Reptile

My body is moist and smooth, I lay eggs, and live in or near the water. What am I?

• Amphibian

• Reptile

• Bird

• Fish